Descripción: “...In addition, the peaks of the nonlinear optical rectification are shown as a function of energy of incident photons and their resonance with the transition energy between the two states. An electric field in the growth direction of the quantum well and a magnetic field perpendicular to the heterostructure are applied in order to study the shifts in the optical response peaks in the spectrum of the incident photons. ...”

Descripción: “...Because of this, the responsibility of internet service providers (ISP) concerning copyright infringement by their users has been a subject of great controversy for more than a decade. ...”